Home / 15,484.74-21,369.03-8,411.22

Finding the Fourth Proportional to 15,484.74, 21,369.03 and 8,411.22

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Solution

The fourth proportional to 15,484.74, 21,369.03 and 8,411.22 is: 11,607.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,484.74 : 21,369.03 = 8,411.22 : x
  2. Step 2: Convert to fraction form
    15,484.74/21,369.03 = 8,411.22/x
  3. Step 3: Cross multiply
    15,484.74x = 21,369.03 × 8,411.22
  4. Step 4: Simplify right side
    15,484.74x = 179,739,612.52
  5. Step 5: Solve for x
    x = 179,739,612.52/15,484.74
  6. Step 6: Final answer
    x = 11,607.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.